Pillar Primary Care

Pillar Primary Care Pillar Primary Care is Knoxville's oldest and largest direct primary care practice. They care for patients of all ages.

Dr. Mark B McColl is board certified in both Internal Medicine and Pediatrics and Dr. Luke Howell is board certified in Family Medicine. The Pillar PC direct primary care allows patients to have more access to care regardless of insurance coverage. This membership style program includes no cost visits, most in house labs for free, and many send out blood labs are also included free with membership. All other services are offered at 60-90% off retail pricing.

Happy 4th of July from Pillar Primary Care!
07/04/2026

Happy 4th of July from Pillar Primary Care!

Proud to sponsor this local race opportunity hosted by Tennessee Run Club and Tennessee Endurance with Elementary, Middl...
06/17/2026

Proud to sponsor this local race opportunity hosted by Tennessee Run Club and Tennessee Endurance with Elementary, Middle, High School, College, and Community heats on the University of Tennessee’s home course at Cherokee Farms.

If you’re a runner come check it out.
You know how nice the UTK home course can be!

Local companies should consider sponsoring this event too. Typical events are packed out with kids, families, and athletes from across the region in two days of competition.

https://runsignup.com/Race/TN/Knoxville/CherokeeFarmsCommunity5KXC

Good healthcare starts with a good conversation.That idea is built into the way we practice at Pillar Primary Care. We s...
05/21/2026

Good healthcare starts with a good conversation.

That idea is built into the way we practice at Pillar Primary Care. We schedule 30–60 minute office visits every time, because people need time to tell their story, ask questions, and be heard.

And that is just the office visit.

Our members also have direct phone and email access, so many conversations start with a quick message:

“Hey Doc…”

I see messages like that several times a day. Sometimes it is something simple. Sometimes it is the beginning of a deeper issue. And when it needs to move to an in-person visit, we have often already started sorting through the concern before the patient ever walks through the door.

No rushed visits. No per-visit fee. No pressure to squeeze everything into one appointment.

Just more time, better access, and the freedom to keep talking until we get to the heart of the issue.

We like keeping it in the family.  When we ran into an over pressured water issue we reached out to Jesse Katz at Tennes...
05/15/2026

We like keeping it in the family. When we ran into an over pressured water issue we reached out to Jesse Katz at Tennessee Home Craft and Plumbing Inc. and scheduled his son Jacob to take care of it. They’ve been patients of the practice since nearly the beginning and they stand by their work. We take care of them and they take care of us. It’s how it should be.

“But the angel said to the women, “Do not be afraid, for I know that you seek Jesus who was crucified. He is not here, f...
04/05/2026

“But the angel said to the women, “Do not be afraid, for I know that you seek Jesus who was crucified. He is not here, for he has risen, as he said. Come, see the place where he lay.”
‭‭Matthew‬ ‭28‬:‭5‬-‭6‬ ‭ESV‬‬
https://bible.com/bible/59/mat.28.5-6.ESV

Happy Easter From Pillar Primary Care

But the angel said to the women, “Do not be afraid, for I know that you seek Jesus who was crucified. He is not here, for he has risen, as he said. Come, see the place where he lay.

Most “lab memberships” charge per test.At Pillar Primary Care, labs are part of your care.Every new adult patient receiv...
02/05/2026

Most “lab memberships” charge per test.
At Pillar Primary Care, labs are part of your care.

Every new adult patient receives a comprehensive baseline lab evaluation included with membership — 50+ individual health markers, such as:

✔ Blood counts
✔ Immune system function
✔ Glucose
✔ Insulin
✔ Hemoglobin A1c
✔ Lipid Panel
✔ Kidney Function
✔ Liver inflammation markers
✔ Hemoglobin A1c (long term glucose control)
✔ Insulin
✔ Thyroid (TSH) or Prostate Specific Antigen (PSA)
✔ Cardiovascular Inflammation (hsCRP)
✔ Urinalysis

For patients addressing insulin resistance, metabolic health or diabetes, we also include quarterly metabolic labs:

• Glucose
• Kidney Function
• Liver inflammation markers
• Insulin
• Hemoglobin A1c
• Lipid panel

When additional testing is clinically need, labs are available at transparent, wholesale-style pricing — no inflated retail lab bills.

Labs aren’t an upsell here — they’re part of practicing good medicine.

We have access to the full test menus from both Labcorp and Quest— the two largest national laboratories. This includes Advanced Cardiovascular Markers, Nutritional levels, Male and Female hormones, Autoimmune testing, and much more.

When you need a test, we offer it. No surprise bills either.

Pillarpc.com

Many clinics sell a prescription.We provide comprehensive medical care.At Pillar Primary Care, weight loss does not star...
02/04/2026

Many clinics sell a prescription.
We provide comprehensive medical care.

At Pillar Primary Care, weight loss does not start with medication.

It starts with the Four Pillars of Health:
• Nutrition
• Exercise
• Sleep
• Stress management

Only after we address these foundations does the fifth pillar become appropriate:
• Medications and supplements (including GLP-1s)

For some patients, medications are helpful.
For others, they’re unnecessary — or even counterproductive without the basics in place.

Studies show weight GAIN is common after starting GLP-1s without the right foundation.

That’s why we don’t offer a one-size-fits-all weight loss package.

Every patient receives an individualized plan, built around:
• Physician-led medical care
• Real-food, protein-forward nutrition with our in-house dietitian
• Habit, behavior, and accountability support from our health coach
• Metabolic health, muscle preservation, and long-term sustainability

If you’re paying extra somewhere else just to obtain a prescription, please know:
👉 This care already exists here
👉 And your health deserves more than medication alone

If weight loss is a goal, let’s talk. We’ll build the right plan — every time, for every patient.

02/01/2026

Pillar PC will open at
noon Monday 2/2.
Reach out to Dr. Howell or Dr. McColl directly if needed.

01/25/2026

Pillar PC will be closed Monday January 26th.
Reach out to Dr. McColl or Dr. Howell directly as needed.

01/08/2026

This month we celebrate 10 years since launching our direct primary care practice! What a journey! Dr. McColl and the Pillar PC team are so grateful for the trust our patients place in us every day.

Address

10437 Hardin Valley Road
Knoxville, TN
37932

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+18652441800

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